涝渍灾害补救措施对水稻产量及其构成的影响

目的]筛选水稻涝渍灾害后提高产量的最佳补救措施。方法]在水稻拔节初期自然受灾条件下,通过不同速效肥、叶面肥生化制剂的优化设计,研究补救措施对水稻产量及其构成的影响。结果]涝渍灾害后水稻不同速效肥和不同叶面肥生化制剂均不同程度上提高产量,不同速效肥灾后补救恢复效应从高到低依次表现为沃丹农、尿素、海硅、稻速青;不同叶面肥生化制剂补救效应从高到低依次表现为阿瑞斯、粒粒宝、磷酸二氢钾、漯效王;追施尿素并配合喷施2次叶面肥生化制剂利于提高水稻产量。结论]该研究筛选出较优的补救措施,为大面积生产灾后应变提供了参考。

Effect of Remedial Measures to Waterlogged Disaster on Rice Yield and Its Components

Objective] To screen the optimum remedial measures to increase rice yield after waterlogged disaster.Method] Under the condition of natural disaster at the early stage of rice stem elongation,the optimal remedial measures to increase rice yield after waterlogged disaster were studied,through the optimum design of different quick effective fertilizer and foliar fertilizer.Result] Different quick effective fertilizer and foliar fertilizer could increase the waterlogged rice yield.The remedial measures of quick effective fertilizers increasing waterlogged rice yield showed a trend of Wodannong ＞ Urea ＞ Haigui ＞ Daosuqing.The remedial measures of foliar fertilizers showed a trend of Aruisi ＞ Lilibao ＞ KH2PO4 ＞ Luoxiaowang.In addition,the application of topdressing urea combined with twice foliar fertilizer was beneficial to increase rice yield.Conclusion] The optimum remedial measures to increase rice yield after waterlogged disaster were screened,it provided reference forthe large-scale production after natural disasters.